kexec build regression in linux-6.6.70 (linux-6.6.y LTS branch)

[Lars Wendler <wendler.lars@web.de>]

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Hello folks,

trying to build latest linux-6.6.y release (6.6.70) fails with the
following error:

  LD      .tmp_vmlinux.kallsyms1
ld: vmlinux.o: in function `__crash_kexec':
(.text+0x1bf9c1): undefined reference to `machine_crash_shutdown'
ld: vmlinux.o: in function `do_kexec_load':
kexec.c:(.text+0x1c15bb): undefined reference to
  `arch_kexec_protect_crashkres' ld: kexec.c:(.text+0x1c1611):
  undefined reference to `arch_kexec_unprotect_crashkres' ld:
  vmlinux.o: in function `__do_sys_kexec_file_load':
  kexec_file.c:(.text+0x1c272a): undefined reference to
  `arch_kexec_protect_crashkres' ld: kexec_file.c:(.text+0x1c2772):
  undefined reference to `arch_kexec_unprotect_crashkres' make[2]: ***
  [scripts/Makefile.vmlinux:37: vmlinux] Error 1 make[1]: ***
  [/usr/src/linux-6.6.70/Makefile:1164: vmlinux] Error 2 make: ***
  [Makefile:234: __sub-make] Error 2


I suppose this is related to commit
e5b1574a8ca28c40cf53eda43f6c3b016ed41e27 which is the only commit in
question that changes kexec code between linux-6.6.69 and linux-6.6.70.

Kind regards
Lars Wendler

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